I was diagnosed with hypothyroid at 16 years old ive been taking levothyroxine 75mcg for 7 years i eat a plant based diet, very healthy and i want to know if its possible to get off my thyroid meds? could my body naturally cure its self of hypothy?

Doubt it: If you were/are truly hypothyroid it is a lifelong condition. The treatment is easy & simply replaces what your body quit making. There are no diets/supplements that replace its effects. I would discuss this at length with your doc. If I had the condition I would never try to get off such an easy fix. The long term consequences are something you should discuss with your doc & understand fully.